过去进行时.ppt

The Past Continuous Tense
过去进行时
吴四少
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：
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表示在过去某一时刻或一段时间正在进行的动作。
was/were +doing
否定式：
was/were not +doing
疑问式：
Was/Were ……doing?
at this time yesterday at 9:00 last night
……was/were doing when….did…..
cook a meal
at this time yesterday
He was cooking at this time yesterday.
ride a horse
at nine last Sunday
He was riding a horse at nine last Sunday.
play football
at four o’clock last Friday
He was playing football at four o’clock last Friday.
this time yesterday
clean the classroom
She was cleaning the classroom this time yesterday.
at ten o’clock yesterday morning
sweep the floor
have a class
yesterday afternoon
They were having a class yesterday afternoon.
at five o’clock
play football
…
play basketball
when the teacher came in